Curious about the science behind double-dipping at parties? This video examines a famous Clemson University study inspired by ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. How many bacteria live on a subway seat? What about on your wallet? In ...

The spread of the H1N1 flu, the "swine flu," is thought to spread from person to person through coughing or sneezing. Health officials encourage you to wash your hands often with soap and warm water.

As flowers bloom and temperatures climb, many are eager to get back outside. But while the Sun may be shining, there is a dark side that can make the great outdoors not so great. Gangs of germs are ...

In 19th-century France, the young chemist challenged the theory of spontaneous generation and discovered an invisible world of airborne microbes. Credit...Antoine Maillard Supported by By Carl Zimmer ...

In 10 flights over Japan, researchers found a host of bacteria and fungi. These high-altitude germs could help spread disease around the world. By Carl Zimmer Carl Zimmer has written about airborne ...